Air turbulence: When can it become dangerous?
Flight turbulence like that encountered by a Singapore Airlines flight on Tuesday is extremely common, but there's one aspect of severe turbulence an aviation expert says can lead to serious injury.
The Biden administration on Tuesday said it will give more than US$6 billion to a pair of high-speed electric rail routes in the U.S. West, injecting new life into long-stalled projects hailed by supporters as the future of public transportation but bemoaned by critics for their high price tags and lengthy construction times.
U.S. senators from California and Nevada said the federal government will give US$3 billion for a planned privately-owned route between Las Vegas and the Los Angeles area plus another US$3.1 billion for an initial segment of California's publicly-funded effort to eventually connect Los Angeles and San Francisco.
The money is a fraction of the total cost to build the routes. But it signals the Biden administration's commitment to high-speed rail, a mode of transportation commonplace in Europe and Asia but bypassed in the U.S. and its car-obsessed culture.
"The federal government is back on building high speed rail in America," said Brian Kelly, CEO of the California High-Speed Rail Authority that is overseeing the public project. "This award is just a great leap forward."
In 2008, California voters gave their blessing for a 500-mile (805-kilometer) project that promised to carry passengers between Los Angeles and San Francisco in under three hours on a fully-electric train traveling at speeds of up to 220 mph (354 kph). At the time, the project was projected to cost about US$30 billion and be up and running by 2020. If running today, it would be the nation's fastest train service by far.
But more than a decade later, the price has ballooned to more than US$100 billion, of which only about US$25 billion in funding has been identified by state officials. Today, officials are focusing on a 119-mile (190-kilometer) stretch that would connect the cities of Merced, Fresno and Bakersfield that would not open until 2033 at the latest. Those three cities are in California's Central Valley, which has some of the worst air quality in the country. The US$3.1 billion would go exclusively toward work on that segment.
Kelly, CEO of the California High-Speed Rail Authority, said the new federal money will help close a funding gap of about US$10 billion for the Central Valley route. He said the authority will look for more money in the future from both the federal and state governments. California Democratic Gov. Gavin Newsom called the funding "a vote of confidence" and said it comes "at a critical turning point" for the project.
Funding for the project has been on a rollercoaster in recent years, with former President Donald Trump trying to revoke US$1 billion in federal money first granted by the Obama administration. Then state lawmakers, including Democrats, tried to block Gov. Gavin Newsom from releasing more than US$4 billion in voter-approved bond money due to concerns about the project's viability. Both pots of money have since been made available.
The route between Las Vegas and Los Angeles has been talked about for decades, and Nevada U.S. Sen. Jacky Rosen told reporters the project now has all required right-of-way and environmental approvals, along with labor agreements, for work to start on some 218 miles (351 kilometers) along the Interstate 15 corridor.
No date was announced for work to start. But Rosen said electric-powered trains could be carrying passengers by the time Los Angeles hosts the Summer Olympics in 2028.
"We're ready to get to work," Wes Edens, founder and chairman of Florida-based Brightline, said in a statement ahead of a Friday event in Las Vegas that may coincide with a visit by President Joe Biden.
Rosen and U.S. Sen. Catherine Cortez Masto, both Democrats, led a bipartisan group including all of Nevada's elected federal lawmakers and four House members from California that in April urged Biden to commit up to US$3.75 billion in federal infrastructure funds toward what they call a public-private partnership.
Planners say trains carrying passengers at nearly 200 mph (322 kph) could cut in half a four-hour freeway trip from a station in Las Vegas through Victorville, California, to a suburban Los Angeles light rail line in the San Bernardino County city of Rancho Cucamonga.
They say the service could help alleviate weekend or end-of-holiday travel traffic jams that often stretch for 15 miles (24 kilometers) on I-15 near the Nevada-California line.
"Connecting Las Vegas and Southern California by high-speed rail will create tens of thousands of good-paying union jobs, boost our Southern Nevada tourism economy, and finally help us cut down on I-15 traffic," Cortez Masto said Tuesday in a statement.
Calls for a high-speed rail line whisking tourists through the Mojave Desert to Las Vegas date at least to 2001, said U.S. Rep. Dina Titus, a Democrat who represents the Las Vegas Strip. The proposal had starts, stops and various names over the years, before getting sidetracked during the COVID-19 pandemic.
Florida-based Brightline Holdings LLC, which built the only privately-owned and operated intercity passenger railroad in the U.S., is expected to model the Las Vegas line on service it began in 2014 on Florida's east coast. That route now links Miami and Orlando with trains reaching speeds up to 125 mph (200 kph).
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Ritter reported from Las Vegas. Associated Press journalist Kathleen Ronayne contributed.
Flight turbulence like that encountered by a Singapore Airlines flight on Tuesday is extremely common, but there's one aspect of severe turbulence an aviation expert says can lead to serious injury.
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